1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60159f548ff038361778b70b83098faf4f95e179d3f4646ef99f86ad2917e9ed. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7319396a-40cb-4c0f-863b-d1c19679daf2.json and https://artists.proofprofile.net/proofs/artist/7319396a-40cb-4c0f-863b-d1c19679daf2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4b78c525cc92177c4960c88c47692e5bfe09b4f82b15947078a5d7ec0c2211. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PESD11102007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706291eb0f73b80b174dc569043b2c2e2a836f090575865a88a5dc3f02c2756f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PESD11102011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75665cbf694dbb5996b13b033593112e6edf7564c347541eae223e5c4874bd67. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PESD11102019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf8b6e62567c79201c777f73308661d72966e47a451864528104e68f17aa2e0. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-17T08:43:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PESD11102020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c9a9c9a56a4ab4b0f54589a90c3f9f2f62c2ed1fd20400a4afcc50739edcb1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PESD11102014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c138977d5cf2e17a7e2d9a0c1f86f99f70fb5f4e5667891d45e47b61f89e49. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:07:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PESD11102008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9ba7b01e39a683d370d0367e66e57add1785911c93fe49016579daeb6f4a30. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PERDL1900073.
Y Su Perú Colores en Concierto (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6077dc728799aedd7fb3b0c693a4bec903c3c37150ebfeb6c8af4aeac8f83639. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2216134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf90137fceb4fcf22f261bb21201b3fc29630b1033bce0c1a4cf465804396ff. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2216135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2bf391a9e8a61b34a33a80222589e59dd49dc3a0a4104f60fe48610bc5eadd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X1605199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04a805cb2fab6d5c4ef4223bee9ee0cb412342fe24242be4b138da9878fdc7f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2216136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab8482f5f6f606f39f296e490a6213e09971c25e89810b08fbc89f59502aa25. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PESD11907310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed277a97cb47cb57c5a4668d0e3c5cd0c94ee4328e5197a62bd4940f88813a6e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2301529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7067c7f5d34d39d0e7f82dbcad81b45ef3f415f508a6815b095afab183aafc. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARUM71700017.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc507e3bf59f13a86b1ea9fe70e4de3ee829eab5500f276a414763e753d00c70e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2106701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35dc5f6299d021123e8f2ba760ab4bc834c877dcc31691b989eeba65356a3b9. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2216137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25119f3b145bbd3947b93e6aeda153d9c37f9ccd13ee8634fe46fc912840a8cb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2216138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6512151e7d9f14bf8ffa97024116ae77df0c1a08728411e072f2f58108cc39f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2216140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6d0a72dfa24368e9940e20cd0f4c81ffa09bc6f430b5222286ac5e2e022ebe. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2216141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe28fd9e95aa768999a22498510784ad97f965550e5da06ff20639c749750d19. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2216142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d81a0016747525e2a1612c9b09f7801ac0ae1f612e54d1f9cd366ea2fe5066d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ62112466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36a1d4bad5d6f4a5865606cebd8b92478c69a5f433d00405959b81c1bfd2c68. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2216143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b6946c8565e934703a7d491c173f221887ebc88380051a71742619602adfa3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ62112468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1bb4e4a01580d3aec2cc8094575878dfe439e9c39f3dca57cc8b623438c4ad3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ62112469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a75f6bb516cfe092a1aaf7bb6e98168079068d9577de77923f22c697922afc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ62112470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adb0b5a723b1afd25656d19abc8be6f41bbe9e40c85f118feb48c7b9f97de78. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ62112471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11053e69b4df642750876a9a0bfb49ca387ed734aef8c875c0836f8a4a73dbb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ62112472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dece5cc414dcc6172c0e159617320636af27fdeaeafcb04cc2a8214e27a0c9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ62112473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772ff9d417147a753f662092e48013d47e13c3183303fe3106e4a1cd99e2eaee. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1480615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2c448474df042cc619838978673e0d8dff017a0b63c1819d53301691dea132. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1480611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd1dd9c1e7e7457284de6224c9261dbda053b673c64641767ae712aa040d698. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2216125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a32918babf2f816a2e3743728897116d49864d98c6035147122d4a9530a0e26. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:14:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2216126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28005afb2ab20d25138f365656ed56c66d009979bd56beaa4385a062ae675841. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2216130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fab1d2c813807f6f6527b5e9c2291a9e9ca10135b8e715ea71b37865372169. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PEDLL2000143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0adce7c0138fbfe86dc668606972745a7e56f548de0d7ae976081b34a6e564. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTVM2124948.